66132929 has 2 divisors, whose sum is σ = 66132930. Its totient is φ = 66132928.

The previous prime is 66132821. The next prime is 66132947. The reversal of 66132929 is 92923166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55472704 + 10660225 = 7448^2 + 3265^2 .

It is a cyclic number.

It is not a de Polignac number, because 66132929 - 2²⁰ = 65084353 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 66132892 and 66132901.

It is not a weakly prime, because it can be changed into another prime (66131929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33066464 + 33066465.

It is an arithmetic number, because the mean of its divisors is an integer number (33066465).

Almost surely, 2^66132929 is an apocalyptic number.

It is an amenable number.

66132929 is a deficient number, since it is larger than the sum of its proper divisors (1).

66132929 is an equidigital number, since it uses as much as digits as its factorization.

66132929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 38.

The square root of 66132929 is about 8132.2155037849. The cubic root of 66132929 is about 404.3951322366.

The spelling of 66132929 in words is "sixty-six million, one hundred thirty-two thousand, nine hundred twenty-nine".